Information on memory/buffer

General
23

I'm following this path because I need to save other variables, and I've noticed that Node-RED restarts if I perform high-frequency polling. So, my idea is to save only the average of the variables every 15 minutes and store everything in a file.

24

There should be absolutely no difference between using memory or File store. Provided all uses of json-spooler use the same store. If there is then you have found a bug, but I will be surprised if that is the case. I am often surprised of course.

25

I also thought the same thing, could you try and tell me what happens?
I have set 'memoryOnly' as the default.

[
    {
        "id": "d37250881c41a530",
        "type": "change",
        "z": "d7f10d595c72d8fa",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "json_spooler",
                "pt": "flow",
                "to": "[$flowContext('json_spooler') , msg.json_spooler]\t",
                "tot": "jsonata"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 700,
        "y": 680,
        "wires": [
            []
        ]
    },
    {
        "id": "cb9710e6324880e9",
        "type": "inject",
        "z": "d7f10d595c72d8fa",
        "name": "",
        "props": [
            {
                "p": "json_spooler",
                "v": "test",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "x": 470,
        "y": 680,
        "wires": [
            [
                "d37250881c41a530"
            ]
        ]
    }
]

The problem is that the array always looks for the 'memoryOnly' variable.

Please check if you can solve this short flow.

26

If i understand correctly $flowContext(string[, string]) takes a second optional argumnet, the store, just like the JS flow.get().

1 Like
27

I can't, in the end I'll settle for the change node